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2 years ago

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Sami opened an account with a deposit of $4,000. The bank pays 3.5% annual simple interest on this account Sami did not make any

additional deposits or withdrawals. How long will it take for Sami to earn $2,100 in interest on this account?

1 answer:

LiRa [457]2 years ago

4 0

Answer: 15 months

Step-by-step explanation:

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Courtney reads around 110 words per minute. She procrastinated and now has less than a week to finish her reading assignment. If

Fynjy0 [20]

820 pages X 350 words = 287,000 words

<span>287,000 / 110 = 2.609.09 minutes </span>

<span>2.609.09 / 60 = 43.48 hours </span>

<span>It would take about 2 days of non-stop reading to finish her assignment</span>

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3 years ago

aylah plans to make small cheese pizzas to sell at a school fundraiser. She has nine bars of cheese. How many pizzas can she mak

Serhud [2]

Answer:

27 pizzas

Step-by-step explanation:

Each brick of cheese can make 3 pizzas since there are 3 thirds in 1. We multiply 3 by the total number of bricks to get 27.

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2 years ago

cylinder shaped can needs to be constructed to hold 200 cubic centimeters of soup. The material for the sides of the can costs 0

Dafna11 [192]

Answer:

Radius=2.09 cm

Height,h=14.57 cm

Step-by-step explanation:

We are given that

Volume of cylinderical shaped can=200 cubic cm.

Cost of sides of can=0.02 cents per square cm

Cost of top and bottom of the can =0.07 cents per square cm

Curved surface area of cylinder= $2\pi rh$

Area of circular base=Area of circular top= $\pi r^2$

Total cost,C(r)= $0.02\times 2\pi rh+2\pi r^2\times 0.07$

Volume of cylinder, $V=\pi r^2 h$

$200=\pi r^2 h$

$h=\frac{200}{\pi r^2}$

Substitute the value of h

$C(r)=0.02\times 2\pi r\times \frac{200}{\pi r^2}+2\pi r^2\times 0.07$

$C(r)=\frac{8}{r}+0.14\pi r^2$

Differentiate w.r.t r

$C'(r)=-\frac{8}{r^2}+0.28\pi r$

$C'(r)=0$

$-\frac{8}{r^2}+0.28\pi r=0$

$0.28\pi r=\frac{8}{r^2}$

$r^3=\frac{8}{0.28\pi}=9.095$

$r=(9.095)^{\frac{1}{3}}=2.09$

Again, differentiate w.r.t r

$C''(r)=\frac{16}{r^3}+0.28\pi$

Substitute the value of r

$C''(2.09)=\frac{16}{(2.09)^3}+0.28\pi=2.63>0$

Therefore,the product cost is minimum at r=2.09

h= $\frac{200}{\pi (2.09)^2}=14.57$

Radius of can,r=2.09 cm

Height of cone,h=14.57 cm

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3 years ago

What is...<br><br> 5. 984<br> 4.761<br> +670

Nostrana [21]

680.745 that's easy

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3 years ago

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Question 7<br> Which is the quotient of 1/5 divided by 3??

blondinia [14]

Answer:

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3 years ago